Results 11 to 20 of about 48,807 (291)
, 2021 Only in exceptional cases, a pair of enantiomers do form a series of mixed crystals. The most well-known of the exceptions is the system laevorotatory carvoxime+dextrorotatory carvoxime; its properties are discussed in some detail. Also, attention is given to recent work on the polymorphism of optically active drugs.
Oonk, H. A. J., Rietveld, I. B.
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Copper (II) Ions Induced Self-Disproportionation of Enantiomers in Capillary Electrophoresis for the Quantification of Atenolol Enantiomers [PDF]
Molecules, 2023 Despite the fact that the self-disproportionation of enantiomers (SDE) has been found for several decades and has been widely used in crystallization, sublimation and chromatography for the purification or separation of nonracemic compounds, the ...
Shaoqiang Hu
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Enantiomers and Their Resolution [PDF]
Encyclopedia, 2022 Enantiomers share the same chemical formula but have different chemical structures, i.e., type of isomers. Enantiomers are present in several drugs, perfumes, food, and are a fundamental part of biomolecules. This subject is highly important for pharmaceutical companies. Enantiomeric drugs present different actuation in the human body; depending on the
Rodrigo Santos +2 more
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Stereoselectivity of In Vivo Processes and Bioactivity of Farrerol Enantiomers [PDF]
MoleculesFarrerol, a bioactive compound found in Folium Rhododendri daurici, demonstrates various biological and pharmacological effects. Nevertheless, the stereoselectivity of in vivo processes and bioactivity between its enantiomers have not been thoroughly ...
Lirong Chen +6 more
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On the Separation of Enantiomers by Drift Tube Ion Mobility Spectrometry [PDF]
, 2022 Racemic mixtures of twelve common α-amino acids and three chiral drugs were tested for the separation of their enantiomers by drift tube ion mobility spectrometry (IMS)-quadrupole mass spectrometry (QMS) by introducing chiral selectors into the buffer ...
Markus, Doerr +1 more
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Separation of Enantiomers through Local Vorticity: A Screw Model Mechanism [PDF]
, 2021 We present a model to explain the mechanism behind enantiomeric separation under either shear flow or local rotational motion in a fluid. Local vorticity of the fluid imparts molecular rotation that couples to translational motion, sending enantiomers in
J. Daniel, Gezelter, Anderson, Duraes
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Chiral inversion of 2-arylpropionoic acid (2-APA) enantiomers during simulated biological wastewater treatment [PDF]
, 2022 This study examined the removal and enantio‑specific fate of a suite of eleven chiral 2-arylpropionic acids (2-APAs) during biological wastewater treatment simulated in a laboratory-scale membrane bioreactor (MBR). Using pure (R)- and (S)- enantiomers in
Nguyen, Luong N +6 more
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Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2022 About half of the drugs currently produced are chiral compounds, and about 90 % of these compounds are sold as racemates, consisting of an equimolar mixture of two enantiomers.
Ye. O. Karpun +3 more
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MODULATION OF CALCIUM CHANNELS IN ARTERIAL SMOOTH-MUSCLE CELLS BY DIHYDROPYRIDINE ENANTIOMERS [PDF]
, 1993 The actions of the optical enantiomers of BAY K 8644 and Sandoz 202,791 were studied on barium inward currents recorded using the whole-cell configuration of the patch clamp technique from enzymatically isolated smooth muscle cells from the rabbit ear ...
S Hering +7 more
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Frontiers in Marine Science, 2015 Amino acid (AA) compositions were determined for bacteria-sized particles and particulate organic matter (POM) collected in offshore regions of the western North Pacific.
Hiroyuki eTakasu, Toshi eNagata
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